P

Inventor

KOSHIKAWA TAKEO

JP7 patents
⚠️ This page may combine multiple inventors who share the name “KOSHIKAWA TAKEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUBISHI PETROCHEMICAL CO

5 patents

MITSUBISHI HEAVY IND LTD

1 patent

SAKAI CHEMICAL INDUSTRY CO

1 patent